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If sin^2A=3sinA×cosA ,prove that tanA=1or1/2

Posted by Nancy Gupta 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Aviral Goyal 6 years ago

Bro tanA should be equal to 3

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A thief after commiting a theft runs at a uniform speed of 50m/minute . After 2 minutes, a policeman runs to catch him. He goes 60m in first minute and and incresases his speed by 5m/minute every succeeding minute. After how many minutes, the policeman eill catch the thief?

Posted by Anshul Rohilla 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

sample paper are very different comparing to last year why

Posted by Gajraj Singh 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Komal ...? 6 years ago

Bcz of chnged pttrn..and also acc. to basic nd standard..

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Sumit Kumar 6 years ago

The pattern has changed

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2x-

Posted by Atul Kumar 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Komal ...? 6 years ago

2x- ..?? Question is not clear..

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Divide 24cin three parts such that they are in ap and their products is 440

Posted by Vishal Yadav 6 years ago

CBSE > Class 10 > Mathematics

0 answers

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Value of ™

Posted by Sanu Gupta 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Raunak Chauhan 6 years ago

Munna bbhukha lahi thi kya jo addha se jada andra ho gaya . Take care again during writing . Best of luck for your board examintion

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If the HCF of 210 and 55 is expressible in the form 210×5+55y then find y

Posted by Kamal Ghotra 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Raunak Chauhan 6 years ago

HCF of 210&55 is 5 According to the question 5=210*5+55y 5=1050+55y -1045=55y Y=-1045/55 Y=-209/11

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All sample paper solved of 2020

Posted by Youshna Rai 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Jatin Rajput 6 years ago

Yes

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Shivam Tiwari 6 years ago

Theorem 6.1 and 6.2

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All sample paper solved of 2019

Posted by Youshna Rai 6 years ago

CBSE > Class 10 > Mathematics

0 answers

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1+sin-cos/1+sin-cos=1+cos/1-sin

Posted by Rahul Yadav 6 years ago

CBSE > Class 10 > Mathematics

0 answers

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the decimal expansion of the rational number 43 / 2 raise to power 4 5 raise to power 3 will terminate after how many places of decimal

Posted by Manish Choudhary 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Aditya Roy 6 years ago

43/2^4×5^3×5/5=43×5/2^4×5^4=43×5/(10)^4=215/10000=0.0215

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AB is a tangent to a circle with center P touching the circle at B. PA intersects the circle at M. If AB=35cm and AM=25cm, find the diameter of the circle.

Posted by Anjali Bokka 6 years ago

CBSE > Class 10 > Mathematics

0 answers

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Ashok can row 8 km upstream and 24 km downstream in 4 hour. He can row 12 downstream and 13 upstream in 4 hours. Find the speed of boat in still water as also the speed of the current.

Posted by Siddharth Kumar 6 years ago

CBSE > Class 10 > Mathematics

0 answers

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If two coins are tossed simultaneously find the probability of getting 2heads

Posted by Sadik Sadik 6 years ago

CBSE > Class 10 > Mathematics

3 answers

Ram ? 6 years ago

1 by 4

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Yogita Ingle 6 years ago

When two different coins are tossed randomly, the sample space is given by

S = {HH, HT, TH, TT}

Therefore, n(S) = 4.

Getting two heads:

Let E1 = event of getting 2 heads. Then,
E1 = {HH} and, therefore, n(E1) = 1.
Therefore, P(getting 2 heads) = P(E1) = n(E1)/n(S) = 1/4.

1Thank You

Prafful Singhal 6 years ago

3/4

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sin2A=2sinA is true when A

Posted by Gurdit Sandhu 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Vijendra Gupta 6 years ago

2sinAcosA = 2sinA CosA=1 cosA = cos0 A = 0

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If the PA and PQ are tangent from an outside point P such that PA=15cm and <APB =60°.Find the length of the chords.

Posted by Niranjan Kamble 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Vijendra Gupta 6 years ago

PQ is also 15cm

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If asin +bcos=c then find asin-bcos =?

Posted by Paramjit Sekhon 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Vijendra Gupta 6 years ago

Let asinA - bcosA =x Square both side both equations and add them. Using identity sin2A + cos2A = 1 We get a2 + b2 = c2 + x2 x = ✓a2 + b2 - c2

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Chapter 2 exercise 2.5

Posted by Kaiff Kaif 6 years ago

CBSE > Class 10 > Mathematics

0 answers

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9x⅔-+89y⅝*987z¾ find x y z if x=89, y=64,z=524

Posted by Dhruv Kakkar 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Hello frnds....all the best u all for u preboard and up coming board exams..i wish u do best and best in ur papers.??

Posted by Ankesh ..Now I Am Fully Ready?? 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Abhinav ? 6 years ago

<A><FONT size="3">All the best you too bro..

4Thank You

Aadya Singh ? 6 years ago

<I><font size = "4cm" Color ="blue"> Thanku....?

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Frnds ...aap log 10th ke baad...optional me kyon sa subject choice kroge

Posted by Ankesh ..Now I Am Fully Ready?? 6 years ago

CBSE > Class 10 > Mathematics

3 answers

Aadya Singh ? 6 years ago

Maths...

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Ankesh ..Now I Am Fully Ready?? 6 years ago

1Thank You

Aditi Nagesh 6 years ago

I will choose maths with additional biology

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The sum and the product of zeroes of a quadratic polynomial p(x) are 7 and 10 respectively . Then find p(x)

Posted by Bunty Yadav 6 years ago

CBSE > Class 10 > Mathematics

5 answers

Deep Singh 6 years ago

p(x) = x^2 -7x- 10

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Deep Singh 6 years ago

x^2-(α+β)+αβ = x^2 -7 +10 Jo isse phle answer ki thi wo glt solve kr di thi....yeh solution shi h dekh lo

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Harsh Kumar Verma 6 years ago

Because sum of zero is given 7 means (alpha + bita )=7.and (alpha×bita)=10 that is product of zero

1Thank You

Harsh Kumar Verma 6 years ago

X^2 -7x+10

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Deep Singh 6 years ago

x^2-(α+β)x+αβ X^2-(7+10)x+(7*10) X^2-17x+70 Therefore,p(x)=x^2-17x+70.

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X 2x 8x

Posted by Anmol Bansal 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Harsh Kumar Verma 6 years ago

X(1×2×8) x in common =16x

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Deep Singh 6 years ago

Kay h yeh??

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1cube

Posted by Rk Hanotiya 6 years ago

CBSE > Class 10 > Mathematics

0 answers

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If the angle between two tangents drawn from an external point p to a circle of radies r and centre o is 60 then find the length of op

Posted by Sultan Kader 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Paramjit Sekhon 6 years ago

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What is distance between two parallel tangents of a circle of radius 4cm

Posted by Rani Soliya 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Harsh Kumar Verma 6 years ago

8cm

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Paramjit Sekhon 6 years ago

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If the perimeter of a circle is equal to that of a square then the ratio of their respective areas is:

Posted by Krishan Kumar 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Siddhant Singh 6 years ago

4:1

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There are two people a and b . They both have 180 lemons,a sells them at 4 per rupee and b sells them at 5 per rupee there total earning becomes 81 . one day b got ill and he gave his 180 lemons to a to sell them at the rate of 5 per rupee. A sells 9 lemons at 2 rupees and his total earnings become 80.Where is the 1 rupee?

Posted by Prachi Vashistha 6 years ago

CBSE > Class 10 > Mathematics

0 answers

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Find the greatest number that will divide 2930 and 3250 leaving remainders 7 and 11

Posted by Anil Kumar 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Deep Singh 6 years ago

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Yogita Ingle 6 years ago

Numbers we will use

=> 2930 - 7 = 2923

=> 3250 - 11 = 3239

Thus by Prime Factorisation Method

=> 2923 = 37 x 79

=> 3239 = 41 x 79

Thus HCF(2923,3239) = 79

Thus, the greatest number that will divide 2930 and 3250 to leave 7 and 11 as remainder.

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2/2=0

Posted by Abhinav Gupta 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Abhinandan Sharma 6 years ago

Wooo what a question

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